I can’t say I have. I was just playing around with OneNote to see how easy it is to accidentally bring up the keyboard or menus and unless I make a deliberate swipe or tap, nothing pops up.

HOWEVER, this has lead me to finding another bug with OneNote. I have both a Japanese and English keyboard installed on SP3 and I just found out that the English keyboard pops up with the caps key locked. I have to unlock it to type in lower case. The Japanese keyboard has the alphabet as well but it works normally. The caps lock bug is only with OneNote, (so far). And the only reason I have an English keyboard installed is because the Japanese one doesn’t have an apostrophe. Can you believe that!?